Hydraulic pulp or paper press.



J. L. GGEEN. HYDRAULIC PULP 0R PAPER PRESS.

APPLIUATION FILED MAB. 1o, 1910.

976,551. l Pantea N0v.22,191o.

Ffa. j a /f l W/ T/VEJJES /A/z/EN Taf?.

'JOHN LOUIS COENEN; OF LITTLE CHUTE, WISCONSIN.

'-HYDRAULIC PULP 0R PAPER PRESS.

Specification of Letters Patent.

Patented Nov'. 2e, 1910.

Application led March .10, 1910. Serial No. 548,330. v

To all whom it may concern.'

Be it known that I, JOHN LOUIS COENEN, residing in 4Little Chute, in the county of Uutagamie and State of Wisconsin, have invented new and useful Improvements in Hydraulic Pulp or Paper Presses, of which the following is a description, reference being had to the accompanying drawings, which are a partv of this specification.

This invention has for its objectl to provide a press for expressing the Water from pulp for paper making and the like by means which will subject the pulp to a preliminary pressing operation before it is passed between the main presser rolls, and further` has for its object to arrange the movable presser roll on guides which are inclined to p provide space for supplemental presse-r rolls cooperating with saidl movable presser roll to accomplish the preliminary pressing operation.

Another object of the invention is to provide such supplemental presser rolls with pressure actuating means operating in unison with pressure actuating means for the movable main presser roll.

With the above and otherv objects in view `the invention consists in the hydraulic pulp press herein claimed, its parts and combinations of parts and all equivalents.

Referring to the accompanying drawings in which like characters of reference indicate the same parts in the different viewsl `igure 1 is a front elevation of a hydraulic pulp press constructed in accordance with this invention; Fig. 2 is an end elevation thereof with a portion of the frame broken away for clearness of illustration; and Fig. 3 is a sectional view thereof on the plane of line 3-'3 of Fig. l.

In these drawings indicates the frame for supporting the parts and which may be of any desired wnstruction suitable for the purpose. yA main presser roll 11 is journaled in open bearings 12 which are preferably in the form of blocks removably seated .on the frame, as shown in Fig. 3, and said presser roll has a gear wheel 13 mounted on one of its trunnions by means of which it is driven from any suitable source of power. The upper portion of the frame forms inelined guides 14 on which slidable bearings l5 t to be capable of moving toward or away from the presser roll 11, and ournaled in these slidable bearings 15 is the movable presser roll 16l for cooperating with the presser roll 11 in expressing the'water from the pulp carried by the usual endless belt which passes therebetween and which is not shown in the drawings because of its being common to all machines of this character. The presser roll 16 is under. hydraulic control so as to bear with greater or less pressure against the material passing between it and the presser roll 11 by having its slidable bearings 15 connected with the piston rods 17 of a pair of pressure cy1inders18 mounted on the upper end of the traine, said pressure cylinders being connected together so as to operate in unison by having pipe connections 19 and 20 connectingtheir outer and inner ends respectively. These pipe connections 19 and 20 also connect with a four way valve 21 which is adapted to connect either of them with a pressure supply pipe 22 and the other with an exhaust pipe 23. The pressure supply pipe 22 is controlled by a three way valve 24 to connect it with either a high pressure reciprocating water pump- 25 by means of a pipe 26, or with a low pressure centrifugal water pump 27 by means of a pipe 28, so that the pistons of the pressure cylinders 18 may be forced upwardly or downwardly with greater or less pressure and thereby correspondingly alfect the pressure between the presser rolls 16 and 11.

, The present invention has particular reference lto the supplemental presser rollsl which are caused to be correspondingly forced toward or away from the presser roll 16 as said presser roll 416 is pressed toward or away from the presser roll 11. supplemental presser rolls 29 are mounted in bearings 30 which slide on frames 31 which are carried by thev slidable bearings 15 so`as to move therewith, and each supplemental presser roll has its bea-rings 30 connected with the piston rods 32 of pressure cylinders 33 secured to the frame 31 for causing` the supplemental presser rolls to be forced against the presser roll 16 with pressure. The cylinders 13 have their inner ends connected by aI pipe 34 and their outer .ends connected by a pipe 35, while flexible hose connections 36 and 37 respectively connect the pipe 34 with the pipe 20 and connect the pipe with the pipe 19, thus subjectingthe inner and outer ends of the cylinders 33 to the same pressure as the corresponding ends of the main cylinders 18. Thus, when the presser roll 16 is forced downwardly against the presser roll 11 the These supplemental presser rolls 29 are correspondl ingly forced against said presser roll 16 to 4passing between the supplemental perform like functions uponthe pulp which passes between the supplemental presser rolls and the presser roll 16 as well as between the presser roll 16 and the presser roll 11. rIhe rotary movements of the presser roll 16 and the supplemental presser rolls 29 are received from the driven resser roll 11 through their en agement wlth the material and felt passin etween them.

By means o lthis invention the pulp is subjected to a preliminary compression by resser rolls 29 and the presser roll 16 belfore it passes between the main presser rolls 16 and 11 and consequently the,water is pressed therefrom to. a sufficient degree to enable the main presser rolls to effectively complete the operation. 4The pressure of the supplemental rolls' 29 against the presser roll 16 does not have a tendency to interfere with the relation of the presser roll 16 with the presser roll 11, inasmuch as the lframes upon lwhich'said supplemental presser rolls are y. mounted are carried by the slidable bearings of the for sai supplemental presser rolls are connected in common with the cylinders `of the presser roll 16, the degree of pressure to which the pulp is subjected is entirely within the control of the operator. One of th'e slidable bearings 15 is provided with a bracket extension 38 to have a link 39 hung thereon at times for lifting the presser roll 11 fromits bearin block 12 at one end. to

ermit ofua new Ielt being inserted, such ifting operation being performed by admitting the pressure to the inner end of the cylinders so as to slide the bearings 15 upwardly on their guides, 'While the link 39 causes the end of roller 11 to move upwardly out of its open bearing 12.

What I claim as new anddesire to secure by Letters Patent is 1. A pulp .or paper press, comprising -a lpair of main presser rolls, movable bearings in which one of the presser rolls 1s mounted to move toward or awayv from the other main presser roll,l frames carried by said movable bearings, 'a supplemental presser roll mounted on the frames and movable with lrelation to the movable main presser roll, and fluid pressure means carried by (presser roll 16, and, as the cylinders by sald frames, pistons workin `pressure cyllnders and connecte said frames for forcing the supplemental presser roll toward or away from the movable main presser roll.

2.- A pulp or paper press, comprising Aa pair of main presser rolls,-movable bearings in which one of the presser rolls is mounted to move toward or away from the other maiupresser roll, fluid pressure means for moving the said bearings, frames carried by said movable bearings, a supplemental presser roll mounted on the frames and movable with relation to the movable main presser roll, and Huid pressure means carried by said frames for forcing the supplemental presser roll toward. or away from the movable main presser roll and being connected in common with the pressure lmeans for moving the bearings.

3. A press, comprising a frame, a main presser roll journaled therein, bearlngs slidably mounted o n the frame at an incline, a second-main presser roll journaled in the bearings and coperating with the other mainpresser roll, pressure cylinders mounted on the frame, pistons workin in said cylinders and connected with the s idable bearings, pipes connecting the respective ends of t the pressure cylinders so that they operate to ether, means for supplying ressure to eit er en d of the pressure cylin ers, frames carried by the slidable bearings, supplemental presser rolls carrled by said frames and movable with relation to the movable main presser roll, pressure cylinders carried in said A with the supplemental presser rolls for forcing them. toward or away from the movable main presser roll, pi es connecting the respective ends of the sai presser cyllnders, and iiexible hose connections from said pipes to the pipes connecting the respective ends of the pressure cylinders for the main resser roll, whereby the pressure cylinders or the supplemental presser rolls operate together with the pressure cylinders for the main presser roll'.

In testimony whereof, I aiiix my signature, in presence of two witnesses.

JOHN LoUIs Corinna. 

